Traditional LED fixtures require individual constant current drivers for each unit, resulting in complex installation and high costs. TYF 's constant voltage COB solution integrates multiple constant voltage ICs in series within the COB light source, enabling a "one-driver-for-N" approach. A single constant voltage power supply can drive multiple parallel-connected fixtures with auto-current regulation, ensuring enhanced safety. This innovation reduces driver costs by approximately 70%, streamlines installation, and improves operational efficiency.

Through continuous R&D, TYF presents the newly upgraded second-generation TBH Constant Voltage COB, delivering a 40% increase in luminous efficacy with superior color consistency and enhanced spot performance. Featuring lower IC power consumption and more stable constant current output, it supports multi-fixture parallel driving with a single driver. The series offers 5-20W high power options with 24V low voltage operation, 2700-6000K intelligent dimming, and maintains compact dimensions for streamlined luminaire design and flexible spatial integration.





Gen 1: 100 lm/W at CRI 90   （Left）                    Gen 2: 140 lm/W at CRI 90（Right）


Monochromatic Constant Voltage COB（Left）           Dual-Color Constant Voltage COB（Right）



 

Environmental Applications

• Residential Lighting

Constant Voltage COB supports 2700-6000K intelligent dimming and color tuning, meeting personalized needs for living rooms, bedrooms, kitchens, and other spaces. Recessed downlights enable layered ambient lighting to enhance comfort.

• Commercial Lighting

With superior spot performance and Ra＞90, the Constant Voltage COB series delivers true-to-life color rendering to boost visual appeal. Its high efficacy and energy-saving features make it ideal for retail spaces, showrooms, and similar settings.

• Accent Lighting

By precisely controlling light direction and intensity, it highlights specific areas or objects to create visual focus and depth. Thanks to its high CRI, flexible beam angles, and stable drive performance, it is the perfect choice for accent lighting.

• Office Lighting

Designed for uniform illumination and visual comfort, it protects eyesight and reduces fatigue in conference rooms, open-plan offices, and other workspaces.




 

Shenzhen Tongyifang Optoelectronic Technology Co., Ltd. (abbreviated as "TYF"), founded in 2009 and headquartered in Shenzhen, is a national-level "Little Giant" enterprise specializing in scientific LED packaging. Its products are widely used in LED general lighting and specialized lighting applications. The company has consistently pioneered new LED packaging technologies, delivering products and services of exceptional performance and reliable quality. TYF provides advanced, professional, and comprehensive lighting environment solutions for global LED lighting design and applications.

TYF adheres to its "1+4+N" strategic layout:

• 1 Core: High-power LED packaging.

• 4 Product Platforms: COB, SMD, CPD, and MOD.

• N Application Scenarios: Smart lighting, health lighting, horticultural lighting, commercial lighting, outdoor lighting, entertainment lighting, and more.
  While deepening its expertise in the LED general lighting market, TYF continues to explore innovation and application in specialized LED lighting segments.

TYF is committed to shouldering national responsibilities by promoting the localization of high-end LED devices and earning the trust of clients worldwide.

• Mission: Leading high-power LED light source solutions.

• Vision: Building a world-class brand in high-power LED light sources.

• Core Values: Customer first, talent first, integrity first.